| Former (18) |
| Chairman | 1997 – 1997 |
| Board of Directors | 1997 – 1999 |
| Board of Directors | 1998 – 2000 |
| Board of Directors | 1998 – 1998 |
| Board of Directors | 1997 – 2001 |
| Deputy Chairman | 2001 – 2002 |
| Board of Directors | 1997 – 2000 |
| Board of Directors | 2002 – 2006 |
| Board of Directors | 1998 – 1999 |
| Board of Directors | 2000 – 2001 |
| Chairman | 1999 – 2000 |
| Chairman | 2002 – 2002 |
| Chairman | 1998 – 1999 |
| Chairman | 2002 – 2015 |
| Board of Directors | 2002 – 2002 |
| Deputy Chairman | 2002 – 2006 |
| Board of Directors | 1997 – 1997 |
| Board of Directors | 2015 – 2017 |